RU1816240C - Machine for controllable longitudinal corrugation of sheet materials - Google Patents

Abstract

PCT No. PCT/NO87/00007 Sec. 371 Date Oct. 13, 1987 Sec. 102(e) Date Oct. 13, 1987 PCT Filed Jan. 16, 1987 PCT Pub. No. WO87/04375 PCT Pub. Date Jul. 30, 1987.A machine for adjustable longitudinal corrugating of sheet materials, particularly of metal with stepwise folding/bending over free-running rollers and counter-rollers, so that alternating longitudinal convex and concave corrugations are formed. At each profiling step there are upward and downward forming rollers (47) which can be individually adjusted laterally to the direction of corrugation. Separate from the forming rollers there are at least one set of drive rollers (60) and counter-rollers (37) where both the drive rollers and the counter-rollers can be adjusted laterally to the direction of corrugation.

Description

The invention relates to a machine which is designed for longitudinally corrugating metal sheet materials in the case of continuous strips or individual sheets for construction purposes and the like.

Fig. 1 is a schematic cross-sectional view of a machine constructed according to the invention; in FIG. 2 is a schematic plan view of the feed end of the machine of FIG. 1; in FIG. 3 is a vertical cross-section along lines IN in FIG. 2; in FIG. 4 is a vertical cross section along the ill-Ill line of FIG. 2; in FIG. 6 is a detailed cross section of a roller forming unit; in FIG. 7 is a cross-sectional view of a roller forming assembly with a part and a holder of a roller housing; on fig; 8 is a detailed cross-section of a roller assembly for crimping edges; in FIG. 9 is a detailed cross-sectional view of a counter roll housing; in FIG. 10 is a vertical cross section of a mechanism for adjusting the height of a support beam.

The machine as shown in FIG. 1 comprises a main assembly 1 where corrugation is carried out, and a guillotine 2 located at the feeding end, as well as a receiving table 3 at the exit.

An existing cutting mechanism may be used for the guillotine 2, which is located in a node in the path of the material. It can be designed so that the same guillotine can be used for all types of material / for corrugation.

The receiving table 3 can be constructed in several suitable ways so that it includes a clamp and a path that is accessible for removing stacks of sheets.

The main node 1 consists of two parallel longitudinal side walls 4, which are held vertical

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supports 5 attached to the base frame 6

The main assembly 1 also includes eleven drive units 7-17. The first priode assembly 7 is located at the inlet end in front of the guillotine 12. The main assembly 1 also includes eleven roller forming assemblies 18-28. The first roller unit is located after the two drive units 7-8. The roller forming units 18, 19 and 20, 21 are arranged in pairs, with a drive unit 9 between them. Other roller forming units are located along the side walls 4 with drive units between them in that order.

The detailed construction of the roller assemblies and drive assemblies will be apparent from the description below. Drive motor 29 shown in Fig. 1 drives a chain 30, which in turn drives a drive chain assembly 31, which is connected to a drive wheel 32 on each of the drive units 7, 8. The drive chain unit consists of a chain 33 linking a pair of drive units and idler 34.

There is an advantage in sheet material stalling at the feed end if there is a gap between two consecutive sheets, so it would be useful if the drive unit acted slightly more slowly than the subsequent ones. This can be done by using drive rollers with slightly smaller diameters than drive rollers further in the machine.

A roll holder for sheet material (not shown) is located at the feed end.

In FIG. 2 shows the feed end of the main assembly 1 with the guillotine 2. Here is shown a piece of sheet material 35. passing through the machine, and the second sheet 36 is fed after the first.

In FIG. 2 is a schematic illustration where the upper parts of the roller forming units and drive units are removed, and which shows the drive roller units 37 and the edge roller units 38, both of them in the roller forming units, and drive rollers in the drive units. A more detailed description of these components will be given below.

In FIG. 3 shows a vertical cross section of the main assembly 1, which is a front section of the roller forming assembly 8 during corrugation of the sheet 35.

Each roller forming unit 8 comprises a lower support beam 39, which is attached to the side walls and which holds the lower group of drive roller units 37. A sliding upper support beam 40 is located on the inner side sides of two parallel posts 41 extending upward from their respective side walls 4 This support bar 40 can be adjusted both up and down in the manner described in detail below. A beam 40 holds the upper group of roller assemblies 37. An edge roller assembly 38 is located on each side. These roller assemblies will be described in more detail below.

In FIG. 4 is a vertical cross section of the main assembly, which is a front section of the drive assembly 7. The drive assembly 7 has a lower beam 41 similar to the lower support beam 39 in FIG. 3, and a fixed upper beam 42, which has bolts connecting it to the upper edge of the side walls 4. The purpose of the upper beam 42 is explained below.

Four opposing roller assemblies 43 are attached to the lower beam 41, each of which has a housing holder 44 that must be bolted to the upper flange of the lower beam 41, and an opposing roller 45. A more detailed description of the opposing roller assemblies is given below.

The drive shaft 46 is located between the two side walls 4 by means of a proper bearing 47. Not to mention the double chain wheel 48 at the drive end of the shaft, there is also a sprocket 49 on the drive unit 8, which is connected to the drive chain from the engine.

In the middle of the upper beam 42 there is a support unit 50, which will be described in detail; below.

In FIG. 5-6, a roller assembly 37 is shown which is designed to corrugate blanks or sheet material. Each roller assembly consists of an L-shaped holder 51 of the roller housing with a shoulder, which is designed to be fastened towards the lower edge of the upper support beam 40 on the upper edge of the lower support beam 39. On the other shoulder of the roller mounting there is an opening for ball bearings 52 and an axis 53 formed in the form of a bolt and nut. On each side of the inner ring of the bearings 52, there is an intermediate sleeve 54, which is located between the two forming rollers 55. The forming roller 55 and the intermediate sleeves 54 are pressed against the ball bearings

52 via one of the nuts 56 of the axis 53. This allows the forming rollers 55 to rotate freely with the axis 53.

Forming rollers 55 are constructed of a sheet material, for example, of the order of a twentieth of a diameter. The rollers should have rounded edges. The rounding of the rollers helps to ensure the distinctness of the folds formed on the sheet material 35. The roller assemblies 37 will have wider application if the forming rollers 55 are uniformly round. The holder 57 is in the form of a steel corner with one shelf attached to the side of the holder 51 of the roller housing and another shelf parallel to the axis of the roller and located towards the center plane of the roller assembly, so that there is a gap between it and the shoulder of the holder 51 of the roller case, which directed to the support beam.

The free end of the holder 57 has a pre-cut thread for the bolt 58 for mounting purposes.

Other roller assemblies may be considered as serving, for example, to form grooves. Freely moving forming rollers that are opposite the opposing rollers in the manner described above can be used here. It would be advantageous if such assemblies were designed as similar as possible to other roller assemblies.

In fig. 7 illustrates an example of an edge roller assembly 38. It is mounted on a base 59, which is similar to a holder 57 with a drive roller assembly 37. A support post 60 projects upward from the base 59, whereby a square tube can be used. On the protruding free end of the support leg 60, two ball bearings 61 are disposed on each of the sides to support the shaft 62 with a blocking sleeve 63 inserted between the ball bearings. A tapered roller 65 is provided on the inside of the shaft 62, with the possible use of an intermediate ball bearing 64, to form beveled edges. From the conical roller 65 protrudes a cylindrical pin 66 of the shaft.

The edge roller assembly 38 will be adjacent to the upper or lower roller assembly 37, so that the two forming rollers 55 press the sheet material towards the shaft pin 66 to ensure that the beveled edge is made at the edge of the sheet material by taper rollers 65 .

If rollers with different angular pitch are used, and the edge roller unit 38 is adjustable in the transverse direction, a different 5 beveled bead 67 can be made.

An example of the drive unit 8 is shown in Fig. 4. The drive shaft 46 drives four drive rollers 68, which are locked in place and are guaranteed against rotation and axial movement by means of locking nuts 69. These drive rollers can be moved along the drive shaft 46 to re-adjust the machine to a different profile shape.

5 in FIG. 9 is a detailed view of the opposing roller assemblies 43. Each roller assembly has a base or housing holder 44, which is similar to the holder 57 in Fig. 5. The opposing roller assembly 43 can be attached to the upper edge of the lower beam 41 by means of bolts 70.

The parallel support arms 71 protrude upward from the mounting bracket 44

5 with a roller shaft 72 between them, which is appropriately positioned by a forked hole in the upper part of each support arm. The shaft 72 drives the opposing roll 45.

The drive rollers 68 and the opposing rollers 45 should preferably have elastic tracks to increase adhesion to the sheet material and make the liver more able to change the thickness of the sheet without requiring adjustment requirements. Optimum results will be obtained when the drive rollers and the opposing roles are identical in diameter and width and have the same track material.

Fig. 10 is a sectional view of the adjustment assembly for the upper support bar 40 according to fig. 3. Two racks 41 form

5 a groove for the upper support bar 40 to be retracted. The upper support bar 40 is held in place by a threaded bolt 73, which is inserted through the connecting plate 74 in the upper part of the two support posts 41. The threaded bolt can be screwed out and screwed in with the adjusting nut 75 over the connecting plate 74 and the lock nut 76 under

5 her.

In FIG. 10 shows a detail of the support assembly 50. The drive shaft 46 has a bearing 77 attached to it. Above it there is a threaded bolt 78 with a threaded boss 79. The bolt 78 sec

the thread is inserted through the upper beam 42. The bolt 78 has a handle 80 and a lock nut 81. This mechanism holds the drive shaft 46 and prevents it from bending, allowing it to be constructed with a small diameter. In addition, the pressure can be adjusted depending on the quality of the material.

Next, the operation of the machine will be described with reference to existing corrugating machines,

Machines that according to the invention can be freely adjusted in relation to the height and width of the profile, the shape of the profile, the number of corrugations, the shape of the edges, etc., use simple, standard equipment. Machines that are consistent with the invention can also be used to form various types of profiles and profile heights, even profiles with different corrugation heights with the same profile shape. This is achieved by moving the forming rollers in the transverse direction and by replacing them with pre-adjusted in the opposite direction forming roller assemblies, and additional simple adjustment in height of the upper and / or lower roller assemblies will take place, depending on the construction method .

Both cases relate to an unchanged basis or degree of adjustment that can be calculated for a particular profile shape. ,

You can also make minor adjustments to the height of the profile and the width of the module of the main corrugations and, if necessary, the corrugation ashrine can also be adjusted. Thus, any particular profile with the appropriate number of corrugations can be adapted to an arbitrary width of the available sheet material.

None of these distinguishing features are present on existing thin sheet corrugating machines that require the use of a complete set of specially designed forming rollers for each new profile.

In addition, the machine of the invention has a fixed setting for one profile regardless of the thickness and quality of the sheet material. For existing corrugating machines, relatively small changes in the thickness and quality of the sheet material require painstaking and time-consuming adjustments of each pair of forming rollers.

A preferred method of construction would be such that the profiling rollers had identical shape and dimensions, for example, with a roller diameter of only 5-25 mm, regardless of the size of the profile and the height of the corrugations. The same criterion applies to optionally movable assemblies for various means of shaping the edges of the profile, all of which are identical in the case of the preferred design method, except for changing the angular steps of the taper rollers 65 to shape the beveled edges,

Moving parts in direct contact with the sheet have the same speed in the direction of movement of the sheet at the contact points as the actual speed of the sheet. In addition, they have a low mass and rolling resistance compared to the corresponding moving parts of the known roller forming machines. This leads to a very simple, inexpensive type of drive device for the machine, and also requires a low power engine. With normal sheet thicknesses of up to about 1.2 mm and the usual quality of sheet material made of steel or aluminum, whatever the profile type and corrugation heights, it will be sufficient to have a drive shaft diameter of about 50 mm and a double 3/4 drive chain or equivalent for a drive connection between the engine and the main drive shaft. The diameter of the auxiliary drive shafts of the twin or single type will be 30 or 50 mm, respectively, with either a single or dual 3/4 chain for internal connection.

In addition, sufficient engine power of the order of 3 kW is possible even at the highest practical profiling speed (about 20 m / min) regardless of the size and type of profile. A device for soft start and soft stop is unnecessary.

All this differs from any known roller forming machines, which operate with a large number of tons of moving parts, require significant kW of engine power, as well as complex auxiliary devices for both soft start and soft stop. In addition, the forming rollers have points of contact with the sheet where the driving speeds are slightly deviated from the speed of the sheet. This is due to the fact that the shape of the forming rollers corresponds to the profile, which implies a change in the distance from

9181I40 10

the axis of rotation to the point of contact of the surface of the sheet to any significant degree. of the rollers with the sheet, therefore, squeezing. In addition, there is nothing here that the adversary action during the roller facilitates the corrugation over the full width of the corrugation forming, the sheets are carried from the first stage of formation and beyond. uniform stretching and problematic- 5 The invention allows the corrugated stresses to be completed. To solve these processes of sheet material, using problems, it is structurally necessary to have a smaller number of forming steps, such a number of forming steps, greatly reducing - long durations of profiling by profiling, as well as significant differences compared to other well-known corrugated rollers. . Moreover, they are known for role-playing machines, and this ensures that both forming machines require more reliable, and better results, universal re-adjustment in the case of - In the case of the machine according to the invention of the thickness and quality of the sheet. When a sheet may be cut in length, the thickness of the sheet is a concern and / or because the guillotine is positioned in front of the sheet in an unusual way, the sheet should be in the area where the corrugation is performed. lubrication is worn in order to avoid. This means that there is no significant distorting stress in the final pro- duction: expansion, since the near end of the leaf, or even spoiling it, that just passes one profiling unit and tells the completion of profiling work. 20 freely goes to the subsequent. Consequently, in a similar way, when used, it also provides possible known roller forming machines for corrugating are preliminary, certain discrepancies of the cut pieces of sheet, width over the surface of the finished profile are inevitable, By using feeders since the compression during corrugation 25 rollers with elastic paths and less changes both due to the thickness and the quality of the drive with a diameter (D) than that of other sheets. drive rollers, one always gets for another. The problem, typical for the misfire between successive sheets, of lean profiling machines, is that when it is captured by the main drive, it is impossible to form a target with a roller, the backward moving sheet has some corrugations from the very beginning . The corrugation, at a much lower speed than the sheet, should begin to move in the middle of the profile in front. This occurs without subsequent corrugation in the direction of any substantial resistance, leaking to the sides after the end- when the main drive rollers on the execution of adjacent corrugations with 35 wrinkle the front part, since the elastic side. In other words, the paths of the feed rollers could be easily milled, or springs t and slide, since the rollers are pulled out after a few stages and have very moderate pressure. This roller formation, the gap between the sheets can be used

In the case of a machine that complies with 40, due to the simple function of switching the invention, there is no similar pressure for directing the sheets to fall on the receiving action, so as to provide a table without stopping the process, corrugating the sheet in the lateral direction of the van and without danger the fact that the sheet, during corrugation, interconnected from the back, creates a problem during these problems, and there is no 45 drop. there are any speed deviations

between the sheet and the contact points move-. Other known corrugated moving parts. Since there is no merit of the usual length, they require trimming of the reference mention of resistance after profiling of the rollers, then there will be no creation — 50 is completed. This is due to the increased risk of stress or uneven divergence, as soon as the measured stretching, which ensures the bottom end of the sheet leaves the stage, the rollers occupy the correct forming position, which inevitably creates according to predetermined degrees of bruising on subsequent stages of forming and adjusting for a particular profile shape. Consequently, the cutting knives of the guillotine must be shaped into

The same width will be obtained in accuracy, similar to the shape of the finished profiling surface independent of thickness and l, which implies a special set of sheet quality, since neither the thickness nor the RILOTIN cutting knives for each sheet quality will affect the compression of the fil.

111816240 12

The machine described in the examples is non-2. The machine according to Claim 1. On the part with how many ways can vary in the meanwhile. that it is provided with lateral assemblies for the cases defined in claim 1 of the preforming formulas of the invention. On a simple machine, forming a set of criss-forming rollers, the forming rollers can, for example, be positioned 5 and a forming roller, are laid on a common upper and equivalent

common lower shaft. If forming ro-, 3. The machine according to paragraphs. 1 and 2, on the other hand, the tabs are moved laterally so that freely rotatable ratios can be created, various forms of integral forming rollers of the corrugation. Likewise, the configurations in the support blocks provided may include a drive shaft underneath the fastening device, which allows the sheet to pass through, and this will allow lateral movement of the two-stage direction,

Modification-15 may also be performed. 4. The machine according to claims 1-3, characterized by the details of the parts. The forming rollers may be such that the pulling rollers are arranged to be freely rotatable with the same diameter and width as the shaft. Covered around the periphery with rubber or other

The design variant may be pre-like material and fixed so that from a certain stage, the profile 20, that each roller is mounted with the possibility that only the edge roller units will be axially adjusted to the drive, is held in the transverse direction, and the shaft is not.

the rest can move freely in accordance with claim 5, The machine according to claim 4, characterized in that it is axially mounted on sliding bearings, which, in that it is equipped with an adjustment unit, can, for example, be connected to a shaft. 25 pressure associated with pulling rollers.

Claims (1)

1. Machine for adjustable longitudinally separate opposing rollers for the wide corrugation of sheet materials, 30 are laid in support blocks provided with a predominantly metal structure, comprising an unstoppable device providing drive forming stands with upper and transverse lower rollers for education in the direction. respectively protrusions and depressions of the corrugations in-7. The machine according to paragraphs. 1-6, on the other hand, consequently, the beginning from the first stand, 35 so that it is equipped with support blocks — the stands being installed with transverse p for edge rollers having exits along the processing line with a possible cylindrical part, set by the adjustment movement in the axis with the possibility of free rotation, perpendicular to NEP pas- or with it, and free rotation of the corrugation, and a pulling unit with a sweeping conical roller, moreover, the axis faces, one of which is installed in reg liruemoy support, dimensions drive, characterized in that near the gap of forming rolls. The pulling unit is made in the form of a series of stands, 8. Machine according to claims. 1-7, characterized by installed transverse rows and the fact that the upper or lower forming-intervals between at least some 45 rollers are mounted with the possibility of red forming cages so that the adjustment points. In height as a single block. contact between the pulling rollers and lys 9. The machine according to paragraphs. 1-8, characterized by the material, lie in the same horizontal direction as the forming rollers of the installation plane, both rollers are axially adjustable with the possibility of adjusting the distance on the common shaft for each stand, perpendicular rn 10. The machine according to claims 1-9, with the exception of the direction of the corrugation, forming so that it is equipped with tensioning rollers of all stands are rounded off to supply sheet material to the entire working surface, while the points of the machine having more low peripheral contact of the upper or lower forming 55 speed than the pulling rollers of the work rollers with the sheet material of the located stands, due to the smaller in comparison with them in the same horizontal plane, and specifically with the diameter of the rollers or due to the contact sides other videos from each pair lower rotational speed, with sheet material - at non-planar 11. Machine popp. 1-10, distinguishing surfaces. so that a part of the roller blocks for forming the edges are mounted fixedly provided with sliding bearings in the lateral position, and the rest are tanned on the roller shaft. .n F / v 60- 384-4  -